package package06章_面向对象编程_基础._06package_import;/**
 * ClassName: PackageImportTest
 * Package: package06章_面向对象编程_基础.package_import06
 * Description:
 *
 * @Author lys
 * @Create 2024/2/16 0:02
 * @Version 1.0
 */

//import java.util.ArrayList;
//import java.util.HashMap;
//import java.util.HashSet;
//import java.util.Scanner;

import package06章_面向对象编程_基础._05oop.exer1_methodMore._04_recursion.e_6_11RecursionTest;

import java.lang.reflect.Field;
import java.util.*;

import static java.lang.System.out;
import static java.lang.Math.PI;

/**
 * @author lys
 * @version 1.0
 * @description: TODO
 * @date 2024/2/16 0:02
 */
public class PackageImportTest {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        ArrayList list = new ArrayList();

        HashMap map = new HashMap();

        HashSet set = new HashSet();

        String str = "hello";
        System.out.println(str);

        Person p = new Person();

        Field field = null;

        e_6_11RecursionTest test = null;


        //Date可以使用import的方式指明
        Date date = new Date();

        //使用全类名的方式
        java.sql.Date date1 = new java.sql.Date(121231231L);


        out.println("hello");

        out.println(PI);
    }
}
